--
-- ~~~ response service utils
--

require("src/utils")

-- setup pawsd
local pawsd = {}
pawsd.signature = require("src/pawsd/signature")
pawsd.record = require("src/pawsd/record")
pawsd.tag = require("src/pawsd/tag")

-- get index of service
function getserviceindex (response)

    local indexStart = 15 + pawsd.signature.length(response)
    return table.extracthex(response, indexStart, indexStart + 1)

end

-- get service flags
function getserviceflags (response)

    local flagsStart = 17 + pawsd.signature.length(response)
    return table.extracthex(response, flagsStart, flagsStart + 3)

end

-- get number of records
function getrecordnumber (response)

    local recordsStart = 21 + pawsd.signature.length(response)
    return tonumber(table.extracthex(response, recordsStart, recordsStart + 1), 16)

end

-- get all records
function getallrecords (response)

    print("\nR>--- Getting Records...")

    local records = {}
    local recordoffset = 23 + pawsd.signature.length(response)
    local recordnumber = getrecordnumber(response)

    print("\nR>--- Record Offset:                                                                        " .. recordoffset)
    print("R>--- Number Of Records:                                                                    " .. recordnumber)

    for recordindex = 1, recordnumber , 1 do

        print("\nR>--- Getting Record " .. recordindex .. "...")

        local record = pawsd.record.get(response, recordoffset)

        records[recordindex] = record.tags
        recordoffset = record.endoffset

    end

    return records

end

-- return
return {
    index = getserviceindex,
    flags = getserviceflags,
    records = {
        count = getrecordnumber,
        all = getallrecords
    }
}